class LinkNotExistingInternalConstraintValidatorTest

class LinkNotExistingInternalConstraintValidatorTest extends UnitTestCase {
  
  /**
   * Tests validate from uri.
   */
  public function testValidateFromUri() : void {
    $url = Url::fromUri('https://www.drupal.org');
    $link = $this->createMock(LinkItemInterface::class);
    $link->expects($this->any())
      ->method('getUrl')
      ->willReturn($url);
    $context = $this->createMock(ExecutionContextInterface::class);
    $context->expects($this->never())
      ->method('buildViolation');
    $this->validate($link, $context);
  }
  
  /**
   * Tests validate from route.
   */
  public function testValidateFromRoute() : void {
    $url = Url::fromRoute('example.existing_route');
    $urlGenerator = $this->createMock(UrlGeneratorInterface::class);
    $urlGenerator->expects($this->any())
      ->method('generateFromRoute')
      ->with('example.existing_route', [], [])
      ->willReturn('/example/existing');
    $url->setUrlGenerator($urlGenerator);
    $link = $this->createMock(LinkItemInterface::class);
    $link->expects($this->any())
      ->method('getUrl')
      ->willReturn($url);
    $context = $this->createMock(ExecutionContextInterface::class);
    $context->expects($this->never())
      ->method('buildViolation');
    $this->validate($link, $context);
  }
  
  /**
   * Tests validate from non existing route.
   */
  public function testValidateFromNonExistingRoute() : void {
    $url = Url::fromRoute('example.not_existing_route');
    $urlGenerator = $this->createMock(UrlGeneratorInterface::class);
    $urlGenerator->expects($this->any())
      ->method('generateFromRoute')
      ->with('example.not_existing_route', [], [])
      ->willThrowException(new RouteNotFoundException());
    $url->setUrlGenerator($urlGenerator);
    $link = $this->createMock(LinkItemInterface::class);
    $link->expects($this->any())
      ->method('getUrl')
      ->willReturn($url);
    $constraintViolationBuilder = $this->createMock(ConstraintViolationBuilderInterface::class);
    $constraintViolationBuilder->method('atPath')
      ->with('uri')
      ->willReturn($constraintViolationBuilder);
    $context = $this->createMock(ExecutionContextInterface::class);
    $context->expects($this->once())
      ->method('buildViolation')
      ->willReturn($constraintViolationBuilder);
    $this->validate($link, $context);
  }
  
  /**
   * Tests validate with malformed uri.
   *
   * @see \Drupal\Core\Url::fromUri
   */
  public function testValidateWithMalformedUri() : void {
    $link = $this->createMock(LinkItemInterface::class);
    $link->expects($this->any())
      ->method('getUrl')
      ->willThrowException(new \InvalidArgumentException());
    $context = $this->createMock(ExecutionContextInterface::class);
    $context->expects($this->never())
      ->method('buildViolation');
    $this->validate($link, $context);
  }
  
  /**
   * Validate the link.
   */
  protected function validate(LinkItemInterface&MockObject $link, ExecutionContextInterface&MockObject $context) : void {
    $validator = new LinkNotExistingInternalConstraintValidator();
    $validator->initialize($context);
    $validator->validate($link, new LinkNotExistingInternalConstraint());
  }
  
  /**
   * Tests validating a value that isn't a LinkItemInterface.
   */
  public function testUnexpectedValue() : void {
    $this->expectException(UnexpectedValueException::class);
    $validator = new LinkNotExistingInternalConstraintValidator();
    $context = $this->createMock(ExecutionContextInterface::class);
    $validator->initialize($context);
    $constraint = new LinkNotExistingInternalConstraint();
    $validator->validate('bad value', $constraint);
  }
  
  /**
   * Tests validating an empty Link field.
   */
  public function testEmptyField() : void {
    $link = $this->createMock(LinkItemInterface::class);
    $link->expects($this->once())
      ->method('isEmpty')
      ->willReturn(TRUE);
    $link->expects($this->never())
      ->method('getUrl');
    $validator = new LinkNotExistingInternalConstraintValidator();
    $context = $this->createMock(ExecutionContextInterface::class);
    $validator->initialize($context);
    $constraint = new LinkNotExistingInternalConstraint();
    $validator->validate($link, $constraint);
  }

}